To Get the Distance to a Cepheid Variable Star, Astronomers

question 15

Multiple Choice

To get the distance to a Cepheid variable star, astronomers must take several steps. Which of the following is NOT one of these steps?

• A) observe the star getting brighter and dimmer to establish that it varies
• B) measure the period of variations by timing when the star is brightest and dimmest
• C) estimate the apparent brightness of the star
• D) measure the star's Doppler shift from its spectrum
• E) apply the period-luminosity relationship

Understand the role of skill inventories and HR information systems in succession planning and career path prediction.

Appreciate the impact of realistic job previews on turnover and job acceptance rates.

Identify the effectiveness and specialty areas of public and private employment agencies in recruitment.

Recognize the significance of accurate job advertisements and yield ratios in successful recruitment strategies.

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Definitions:

Pencils

Simple writing instruments consisting of a graphite core encased in a wooden or plastic barrel used for writing or drawing.

CPM/PERT

A project management tool that combines the critical path method and the program evaluation and review technique.

Scheduling

the process of arranging, controlling, and optimizing work and workloads in a project or system.

Management

The process of planning, organizing, directing, and controlling resources to achieve specific goals.